Method finalize

flow-rs/tests/nodes_ext.rs:17–17

(&mut self)

    async fn initialize(&mut self, _: ResourceCollection) {}
    async fn finalize(&mut self) {}
    async fn exec(&mut self, _: &Context) -> Result<()> {
        let mut recv_a = FuturesUnordered::new();
        recv_a.push(self.a.recv_any());